Flask-clamp for roll-over molding-machines.



W LEWIS FIASK CLAMP FUR ROLL-OVER MOLDING MACHINES. APPLICATION FILED APR. 1o, 19. 1,24%1 13.

Patented Oct. 30, 1917.

3 SH EETS-SHEET 1.

W. LEWIS. FLASK' CLAMP FOR ROLL-OVER MOLDING MACHINES.-

APPUCATION FILED APR.10. 19H.

Patented Oct. 30, 1917.

3 SHEETSSHEET 2.

W. LEWIS.

FLASK CLAMP FOR ROLL-OVER MOLDING MACHINES. APPLICATION FILED APR. 10. 1917.

L245, 1 1 3. Patented Oct. 30, 1917.

3 SHEETS-SHEET 3.

Wyn/rams W/m'mss;

Mgd4 w$ Wa g wy in Arm/Hw itTED TATE PATENT QFFEQEQ WILFRED LEWIS, 0F HAVERFORD, PENNSYLVANIA, ASSIGNOR TO THE TABOR MANU- FACTURING COMPANY, OF IHILADELPHIA, PENNSYLVANIA, A CORPORATION 01E.

PENNSYLVANIA.

Specification of Letters Patent.

Patented Oct. 30, 1917.

Application filed April 10, 1917. Serial No.160,907.

To all whom it may concern:

Be it known that I, WILFRED LEWIS, a citizen of the United States, and a resident of Haverford, in the county of Montgomery and State of Pennsylvania, have invented a certain new and useful F lask-Clamp for Roll-Over Molding-Machines, of which the following is a specification.

The principal object of the present invention is to provide a convenient, efiicient, reliable and easily and quickly operatable flask-clamp for securing flasks to the frames of roll-over molding machines, of which there are a great variety.

The invention will be claimed at the end hereof but will be first described in connection with the embodiment of it chosen for illustration in the accompanying drawings, in which Figure 1, is a side view illustrating at the right thereof and in open position, a

clamp embodying features of the invention and at the left thereof in dotted lines, the clamp in closed position.

Fig. 2, is a view, partly in section, showing a clamp embodying features of the invention, and

Fig. 3, is an end view of the clamp.

The molding machine shown in the drawings is merely typical of a roll-over molding machine and needs no particular description further than to say that 1 is the roll-over frame which, as is. Well known, is turned by suitable mechanism and in turning carries the flask with it. 2 and 3 are strap elements, shown as arranged in pairs, and they are connected with the roll-over frame and since they are arranged in pairs a description of one of each pair will for most purposes be suflicient. The strap element 2 is immovably connected with the rollover frame. As shown in Fig. 1 this is accomplished by bolting portions of it, as at 4, to

.a cross-shaft 5 carried by the frame but this connection is merely illustrative. The strap element 3 is turnably connected with the roll-over frame 1 so that it may occupy the position shown at the right-hand side of Fig. 1, as well. as the position shown in Fig. 2. 6, are disks turnably mounted in the frame and 7 is a shaft eccentrically mounted in the disks. To this shaft 7 is connected a handle 8 so that when the handle 8 is turned, as indicated in Fig. 2 by full. and dotted lines, the'eccentrics are turned in their hearings in the frame 1. 9, are sleeves mounted on the shaft 7 so as to turn thereon and to these sleeves the strap elements 3 are connected as at 10. The strap "elements are shown as provided with projections 11, arranged at different distances along the strap elements. The flask holding rails 12 are notched at their ends so as to straddle the strap elements and extend under the projections 11 so as to be engaged thereby. Use is made of one or another of the elements 11 according to the depth of the flask a. The handle 8, or more accurately the frame thereof, is provided with ledges or shelves 13, by means of which the rails 12 when not in use are supported between the handle frame and the strap elements 3 as shown in Fig. 1.

In use the flask a is mounted 011 the frame 1 and the rails 12 are properly applied to the strap elements underneath their appropriate projections 11 with the handle 8 in its lowermost position as shown by full lines in Fig. 2; thereupon the handle is turned upward as shown in Fig. 2, thus causing the disks to turn and in doing so to pull down the strap elements 3 and so clamp the flask firmly to the frame. 1. After the frame 1 and flask have been turned over, the handle 8 is turned upward from the position shown in dotted lines in Fig. 1, thus shifting the strap elements 3 away from the frame 1 and freeing them from the rails 12 sutti ciently to permit of the strap elements be ing turned clear of the rails in order to unclamp the flask.

It will be obvious to those skilled in the art that modifications may be made in details of construction and arrangement without departing from the spirit of the invention, which is not limited as to those matters nor to the particular form of roll-over machine illustrated nor otherwise than as the appended claims and the prior state of the art may require.

What I claim is:

1. A flask-clamp for roll-over molding machines comprising the combination of a rollover frame, strap members each permanently carried by the frame, a flask holding rail adapted for detachable. connection with two of the strap members, and an eccentric connection for tightening and loo-sening the clamp.

2. A flask-clamp for roll-over molding machines comprising the combination of a roll-over frame, strap members of which one is immovably connected with the frame, turnable disks mounted on the frame and to which the other strap member is eccentrically pivoted, and a detachable flask hold ing rail adapted to cooperate with said strap members.

3. A flask-clamp for rollover molding machines comprising the combination of a roll-over frame, strap members constituting permanent parts of the frame and of which one is, immovably and the other turnably rye-5,113

connected to the frame, a flask holding rail adapted for detachable connection with eaclroitl1e strap members, one means for tightening the clamp.

at. A flask-clamp for roil over molding machines comprising the combination of a roll-over frame, strap members of which one is attached to the frame. a turn-able disk mounted on the frame and to which the other strap member is eccentric-ally pivoted, a flask holding rail detachable in respectto the strap elements, and a handle adapted for turning the disk and provided with means for supporting the rail between it and the turiiable strap element when they are not in use, substantially as described.

WILFRED LEWL;

homes of this sstent may be obtained. for five cents each, by addressing the Gommissioner oi Eeteiitc, Washington, *3. 

